Tension for spoolers



C. O. CARTER.

TENSlON FOR SPOOLERS.

APPLICATION FILED APR.8. l9l8.

1,327,022. Patented Ja11.6,1920.

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Chuflie OCurTer m WkW AlIys.

UNITED STATES PATENT OFFICE.

CHARLIE O. CARTER, OF ANDERSON, MASSACHUSETTS, ASSIGNOR TO DRAPER CORPO-BATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

TENSION FOR S'POOLERS.

Specification of Letters Patent.

Patented Jan. 6, 1920.

Application filed April 8, 1918. Serial No. 227,160.

To all whom it may concern:

Be it known that I, CHARLIE O. CARTER, a citizen of the United States,and resident of Anderson, county of Anderson, State of Massachusetts,have invented an Improvement in Tensions for Spoolers, of which thefollowing description, in connection with the accompanying drawing, is aspecification, like characters on the drawing representing like parts.

This invention relates to improvements in yarn winding machines and thepurpose thereof is to provide a novel means for maintaining a suitabletension upon the strand of yarn running from the yarn sup plying meansto the rotatable yarn receiving means which will be simple inconstruction, effective in operation and free from the necessity ofattention and repair.

A further object of the invention is to provide a device of thecharacter described which may be" readily adjusted to impose more orless tension upon the running strand and which will take out or preventthe formation of knots or kinks in the running strand.

More specifically the object of the invention is to provide a tensiondevice for yarn winding machines in which a weight is partiallysupported by the running strand of yarn and partially by an extraneousmeans which may be adjusted to positions in which the weight will besupported to a greater or less extent upon the running strand of yarnand in which the frictional engagement between the weight and saidsupporting means may be also varied.

A further object of the invention is to provide a tension device of thecharacter specified in which the running strand of yarn will be engagedfrictionally between the base of the weight and the supporting surface.

A further object of the invention is to provide a device of thecharacter described in which different sizes of weights may be used inaccordance with the conditions under which the device is employed.

, Other objects and features of the invention will more fully appearfrom the following description and the accompanying drawings and will bepointed out in the annexed claims.

In the drawings,

Figurelis a transverse'sectional View of a suflicient portion of aspooler to illustrate the application of the present invention,

Fig. 2 is a detail side elevation of a preferred form of tension deviceembodying my invention showing the same attached to a supporting rod,

Fig. 3 is a plan view of the same, and,

Figs. l and 5 are detailviews of weights of different sizes which may beused in the manner hereinafter described.

The yarn winding machine illustrated in the accompanying drawings may bea spooler of the usual type comprising a frame 1 supporting a series ofspool carriers 2 for spools '3, the spool carriers being driven bywhirls l through the medium of belts passing around the rotating drum 5.The traverse of yarn upon the spools is effected through the usualthread guides 6 carried by traverse rods 7 reciprocated by rocker arms 8which are oscillated by the yoke 9 in the usual manner;

The yarn supplying means illustrated herein is in the form of a bobbinor cop 10 mounted upon a spindle 11 which is carried by a stand 12'which is adjustably secured upon the rod 13 which extends longitudinallyof the frame. Arms or brackets 1e extending from the frame preferablyare provided to support a rod 15 which acts as a guide to cause the yarnto be pulled from the yarn supplying bobbin or cop substantially axiallythereof.

The strand of yarn 16 runs from the bobbin around the rod 15, thencethrough the tension device forming the subject of my present inventionto the yarn guide 6 and from it to the spool, the yarn guiding meansbeing raised and lowered in the usual manner to provide for the traverseof the yarn upon the spool or other yarn mass which is being wound.

Where the yarn is supplied from a carrier having a weft or filling wind,which comprises a succession'of yarn spirals piled up upon one another,a great irregularity of delivery occurs during the unwinding of the yarnby reason of the throwing off of spirals of different sizes and thepresent tension device is particularly adapted to maintain a uniformtension upon the yarn as it is wound upon the spool irrespective of themanner in which the yarn is delivered from the supplying means. Thepresent tension device also operates effectively to remove weight.

kinks from the running strand as well as to prevent the formation ofkinks due to the uneven unwinding of the yarn from the yarn supply.Furthermore the tension de vice disclosed herein is adapted to impose auniform tension upon the yarn which is not effected by the changes inthe speed of the yarn caused by the building up of the winding upon thespool.

The preferred form of tension device which is illustrated hereincomprises a weight which engages the running strand of yarn in such amanner that it is partially supported thereby and partially supported byother means which may be adjusted so as to support the weight to agreater or less degree. The device is also so constructed that more orless friction will be applied to the running strand of yarn as it passesbetween the weight and the supporting member.

Thetension device which is illustrated in Fig. 1 as applied to a spoolerand in Figs. 2 to 5 in detail, comprises a plate 17 having a bodyportion substantially rectangular in form provided with an extension 18having an aperture 19 therethrough to receive a bolt or screw 20 forsecuring the same to a suitable support.

As illustrated herein the plate 17 is secured by the screw or bolt 20 tothe extension 21 of the upper half of a split collar 22 which embracesthe traverse rod 7, the lower half of said split collar having anextension 23 adapted also to be engaged by the screw 20 so that thescrew 20 serves the double purpose of clamping the split collar upon thelifter rod and of securing the plate 17 thereto. v

. The body portionof the plate 17 is preferably offset from the plane ofthe extension 18 so that the surface 24- thereof is inclined downwardlyfrom the horizontal. The rectangular body portion of the plate 17 isprovided with aslot 25 which preferably extends diagonally of said bodyportion and the upper portion of said body is cut away to form the yarnguide 26. A weight 27 preferably in the form of a relatively thin diskrests upon the inclined surface 24 of the'plate 17. The disk is providedwith a central stud 28 which extends downwardly through the slot 25 andis provided at its lower end with a nut 29 which preferably is locatedat a considerable distance from the plate 17 to permit free movement ofthe The periphery of the disk or weight is provided with an upwardlybeveled or curved surface 30.

When the tension device is supported in operative position upon theframe of the windingmachine the weight tends to slide dawn the inclinedsupporting surface until the stud28 rests "atthe lower end of thesieves.

rnahee erauen er fih lliaelline the ning strand is carried through theguiding recess 26 downwardly beneath the stem 28 of the weight 27 andthence upwardly across the surface 24-, still beneath the Weight, to theguiding means.

As the yarn is drawn through this tension device by the rotating spoolthe running strand draws the Weight upwardly in the general, directionof the movement of the running strand as illustrated in Fig. 3 and theengagement of therunning strand with the stem 29 of the weight tends torotate the same. The tension applied to the running strand of yarntherefore, is effected, first, by the'partial supporting of the weight,-sec- 0nd, by the frictional resistance to the movement of the weightupon its supporting surface, third, the resistance against the rotationof the weight, and fourth, the frictional resistance caused by theclamping of the yarn between the weight and the sup porting surface.

By adjusting the inclination of the surface 24: of the plate 17relatively to the horizontal the amount of weight imposed upon therunning strand may be varied at will. By pivotally adjustingthe positionof the body portion of the plate 17 about the screw 20 the amount'of'resistance against the upward movement of the weight and therotation thereof may be varied in accordance with'the axial position ofthe slot since the slot may be'so positioned that the stem of the weightwill be pulled against the side of the slot with greater orl'ess forceaccording to the position of the slot relatively to the direction of themovement of the running strand.

By providing weights ofdifferent sizes such as illustrated inFigs. 4 and5 and by varying thei inclination of the'supporting' plate 17 the devicemay be adapted'to impose a'ny desiredtension upon the running strand. Byreasonof its simplicity of construction thefdevice is easily applicableto any yarn winding apparatus.

It is to be understoodthatembodimentsof the invention disclosed hereinare illustrative and not restrictive and that various changes in form,construction and arrange ment of parts maybe made'within the meaning andscope of the following' claims.

Having thus described my invention what; I claim as newand desiretosecure by Letters Patent is:

1. Tension mechanism for yarn winding machines comprising amemberhavinga'flat weight supporting surface inclined to the horizontal, aweight slida'bly mountedupon said weight supporting surface and 'meansfor guiding the running strand ofyarn beneath said weight to cause therunning strand partially to support said weight:

2. Tension mechanism for yarn winding machines comprising emember athereon, means for guiding the running strand of yarn beneath saidWeight to cause the running strand partially to support said Weight andmeans for adjusting the inclination of said weight supporting surface.

3. Tension mechanism for yarn winding machines comprising a Weighthaving a cylindrical stem a member having a weight supporting surfaceinclined to. the horizontal and slotted to receive the said Weight andpermit up and down movement thereof on said Weight supporting surfaceand means for guiding the running strand of yarn around said stem tocause said running strand partially to support said Weight.

4:. Tension mechanism for yarn Winding machines comprising a weight inthe form of a disk having a cylindrical stem, a plate having a Weightsupporting surface inclined to the horizontal and slotted to receive thestem of said Weight, means for guiding the running strand of yarn aroundsaid stem to cause the same partially to support said Weight and meansfor adjusting the inclination of the weight supporting surface.

5. Tension mechanism for yarn Winding machines comprising a weight inthe form of a disk having a beveled periphery and a cylindrical centralstem, a plate having, a Weight supporting surface inclined tov thehorizontal and slotted to receive the stem of said Weight, means forguiding the running strand of yarn around said stem to cause the samepartially to support said weight, and means for adjusting the weightsupporting plate to vary the position of said slot relatively to thedirection of movement of the running yarn.

6. Tension mechanism for yarn Winding machines comprising a memberhaving a weight supporting surface inclined to the horizontal, a Weightmounted upon said surface and capable of movement in the generaldirection of the movement of the running strand, and means for. guidingthe running strand between said weight and said supporting surface atone side of the vertical axis of said Weight, whereby said strand willbe frictionally engaged both by said supporting surface and said weight,and when CHARLIE O. CARTER.

